It contains data objects that provide all the elements required to define the contract between the user and the operator. The data flow contains the following data objects:<br/>- user ID,<br/>- operator ID<br/>- list of services ID covered by the contract,<br/>- area covered,<br/>- supplementary parameters defining the service,<br/>- period of validity,<br/>- tariffs (optional),<br/>- reduction fees (optional),<br/>- modes of payment,<br/>- EP account ID (optional).<br/>
